TexasCHLforum.com

Can she borrow a double action single action semi w/ a better trigger, from someone. Ask the instructor if you can load for her, insert the mag, & drop the slide, handing it to her ready to fire single action. If he refuses politely offer this reasoning. At her home or in public on her person, she can carry one already loaded and charged by someone. It may be hard but one trigger pull is much easier than several. After the 1st she is single action anyway.
She may be slow & very slow, or need to cock the hammer, but she still ought to have the right to try to defend herself & fight back. This argument was given me by a woman whose hands had to be in as bad shape as your Mom's. I could not refuse her training & she went to her class. The instructor there allowed it under those circumstances & she made a 98 on the written & shot a 235 w/ a sig 232. That gun has a very lady friendly grip & trigger pull.
edit: After the class what ever the cost she needs to have one she is confident with. I know when my Mother took her class & started carrying she said just the confidence of knowing she did learn to safely handle & accurately shoot a gun & now COULD defend herself if she had to, gave her a lot of confidence & assurance. She does not go hunting badguys after dark but she does not mind being by herself in public if needed. Now home is definately her castle. Dont scale the wall Atilla. It was worth every nickle spent.